I'm developing an App in Xcode 8.x.
I have a problem resizing 4 buttons on the first screen. I work on the design of iPhone 5 or 6 and I set up all the auto layout, when I squeeze all the devices it's cool except on the Iphone 4 where I can open on the Ipad, but the buttons on the resize just goes up, I wanted a suggestion on where I'd be going, I'm using the auto layout as follows, I click the right and drag to the side and use the horizontal space etc. and successively.
view the images: 
Well, an alternative for you to be able to display the last button on iPhone 4 is to use a TableView with static cells :
And if your list of items increases, you will no longer have this problem with this iPhone model.
Friend, it's hard to give any suggestions from Autolayout ... where there are several ways you can come up with a result.
One alternative would be to try to configure the layout from the iPhone 4s, and let iOS and constraints adapt to the other devices.
As follows:
Onceyourlayout"snaps" into the size of the iphone 4s, the rest will work.
As for the size of the buttons, try using height based on screen size ... it's a bit of a boring job, but it's a pretty good solution. I've used it several times. Just do it for a button, and give an equal height to the other.
Type this:
1 - Equals height of the view in question equal to the height of the superview
2-Gototheconstraintthatyoujustcreated,andclickedit: 
3-Inthemultiplierattribute,youselectthemultiplierofthisconstraint.Thevalueworksasapercentage.Being0:zeropercent;and1:100%.InmyexampleIput12%ofthescreensize,thatis0.12. 
After this, you could leave the other buttons with the same height as the button you just changed.
Anyway ... that's it. Hope it helps.
JLU.
